1311056601042 has 32 divisors (see below), whose sum is σ = 2642830444800. Its totient is φ = 433570405968.

The previous prime is 1311056600977. The next prime is 1311056601149. The reversal of 1311056601042 is 2401066501131.

It is a happy number.

It is a super-2 number, since 2×1311056601042² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639309 + ... + 1740927.

It is an arithmetic number, because the mean of its divisors is an integer number (82588451400).

Almost surely, 2^{1311056601042} is an apocalyptic number.

1311056601042 is an abundant number, since it is smaller than the sum of its proper divisors (1331773843758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311056601042 is a wasteful number, since it uses less digits than its factorization.

1311056601042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103190.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 1311056601042 in words is "one trillion, three hundred eleven billion, fifty-six million, six hundred one thousand, forty-two".